Drill



May 24 1927.

w. R. PENSOIjN DRILL Filed Sept. 11. 1924 HHHHIIH HIHII I IHH I Me.

the

. 7' UNITED 30 d of illustration is shown the-preferredem tively,the,sa 1ne'heing arrangedfin vertical alignment and provided w th al gning open- WILL AM R. EN ON; or"

,This invention relates to nevvand-iuseful improvements in drills and'has its prin 'cipal object toprovide a simple. and 'eflioient device wherein improved: means i sji1tiliz'ed 5 for rotating the" drill chufCk Qsh-aft' and the V drillsupported therein in either-direction further objeot r'oftheinvention is' to provide a drill of the, aboveinentioned ohali im 1 drill atgaihighe r'atfej p provided With the iisual ohuc ing the j shank of E a drillgin the aster, 1 wherein; an; additional shaft is detachably supported-j on i t and adapted s-ifor ,rota'tio' of'speed-than; the ma n drill'ohuok shaftg I further'fobjectj of. 'e inventionf is" to 1 provide a 'dri'llioithe'above in intibned the 15 "acter, which is simple i'n1oonstruiotion,"ine pensive, strong and L durable'fandfifurth more adapted forfthe' purposesffor Whieh 1 g is'intended. U

Other "objects this in 'ventionwill become 7; apparent during fjlth'e course of thelfollo'wing description;

In the ac'oor'npanying 'drawing forminga part of this specification-and in whielrzlike J V numerals" designate like parts. throughout "25'the same: Figurel is aside elevation ofj'my im-Q p g v mjounted on the'drill chuck shaft 12and disa posed below;-thefool1ar 10; in ithe nannericlearly illustrated in thedrawin'g; i d

proved drill and Figure 2 1s a transverse section taken aP-f' proximately on line 2 2 of Figure i In. the drawing wherein "forthe" purpose bodiment ofiiny invention, the numeral- 1 designates a brace forming. a partfofthe drill and the same "is provided gon its'side with thelateral extensions 12 and respec ings for thepurposeshereinafter 'to'be more fully described; Extending! transversely thereof on one side {of the "lor ace'is the en larged beveled gear 5. Theropposite end of 1 therniore is'providedrwith"an outward'lyex tending portion-{7; which: provides 'alhandle openings provided in the lateral'iextensions DRILL.

-disposed; 'beloyv' the beveled ile ei' p iiee "-sv i'sin more fully to receive theinner-end of the set screw 17 fvide a means; for ldeta'chably supporting and v receiving the inwardly extendingiarms'fll Whiehf'are p'rovid'ed on thecollars 22 through which extends the: auxiliary folrill ehuek f "shaft 23.. The drillloh'uck shaft: 23 carries' through, the upper portion of-the brace lj is' p I theerank shaft l and mountedjon oneend Supportingth'ejdr ll chuck-shaft in position within the aligning-openings provided-in the v 'collar' 22 I provide the retainingfcollan25; i

or grip for: enabling the operator to propk erlyhold the braceivhile the drillgi'sfin opjExtendingvvertically through the aligning unrrruia" wims," Te as, iissieivon or ONE-HALF? TO, :roiiivfr 7 m .'roszrnrt, or KEMEj'TEXASL $20 t ar lr? The upper em ires on a beveled 1gp mesh fwi bevel 1 f 2 may Y Y the upper endi "of the. drill; chuck iiqwi'll eii afte the drill-ehuckshaft12is provided ith an an-,

nular groove-16 andthe purpose thereofisi I which extends through a band 18 loosely The collars 9; and 101;respective1y" are protheflateral' extensions 20 on the oollars and the"purposezof this construction isto proon its lower the usual ohuok -2 for' the r I purposes *ivell known in the art, and for Mounted'on the upper-end of the auxiliary drill-v ehuel'rshaft 23 isxthe 'sniall' spur'Jgear I 26 t'vhioh imesheswith the la'rgerl spur gearff' i l and isadaptedto be rotated thereby when 1 thebeveledigear. '14: 'keyed fonthe flipper end;

'eff esheffl e tdi j ielar ejbeveled gear 5 mounted jon'the orank shaft 4i. "f The 105 J pro'yision of the auxiliary{drill-Chuck shaft; v 1 V 23 is to provide hatI: term" as alhigh speed rupee-i1;

rth iictha-idwer end of-the vided With soo'kets'li) which-are formed/in chuck shaft'may be detachably secured onto the frame whenever it is desired to use the same and does not require the loss of any considerable time or labor inorder to place the same in an operative position. with re-' spect to the main drill chuck shaft 1 2;

Theup'per end of the brace 1 may further be provided with a breast plate 28. anda sup port 29 'is associated therewith, the" latter bei 'g supported" in the upper endiof the bracein any suitable manner." 7

"WV-hen it isdesired to reverse the-rotation. of the drill "chuckshaft 4:, the beveled gear .5

'andthehandlev ti are removed fromthe crank v shaft l and are' reversed' manner well known in the art. r o 7 v It will thus be seenfrom the foregoing de scripad g umea; ldrill has been provided whereina main drill chuckshaftand an auxshaft, the same maybe detached from, the

frame, The'fisimplicity my device fur:

thermore enables the same tobe manufacturedat a very low cost and will be strong and durableand' the parts so arranged as to be readily disconnected whenever desired.

. While I'lhave shownthepreferredembodi- V 'Having tll ls described invention, what 7 of drills are operated by 'a single'actuator,

n in omb n jfi m iav ng 'PB turedjlateralprojections spaced apart at one i i 50 side of the frame, and, also" having an I endv extensionfan'dfa lateralfhandl and a. breast j V lapepn said extension, a sleeve disposed and:

supported; i1' ;fsaidlapertiiredprojections,col it 'lars' fixed on said'sleeve' and disposedat op 55 collarsprovidedfwithjsockets,and arms deposite sides o'fsaid-lateral projections, said mutiny secured insaid socketsfafnd having 7 I I I t h A, coincident journal-bearings,a toollcarried iatyfd'ri l HQ -a tM c nnecte so h eacli ofsaifd'sleevesQandfsaid journal bear ings," respectively, and means on frame adapted-to:Qperatesaid tools. i r

; WILLIAM jig rtrsfi; 

